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In hot machining, tool is made of

A. Tungsten carbide

B. Brass or copper

C. Diamond

D. Stainless steel

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  1. Quality screw threads are produced by
  2. The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions…
  3. Crater wear occurs mainly on the
  4. Glazing in grinding wheels takes place when the
  5. What is the type of welding defect caused due to poor deposition of weld rod is called?
  6. A mandrel is used to hold
  7. The abrasive slurry used in ultrasonic machining contains fine particles of
  8. The purpose of jigs and fixtures is to
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  10. In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is
  11. The facing is an operation of
  12. Side relief angle of a single point tool is the angle
  13. The tool life is affected by
  14. In drilling Bakelite and fibrous plastics, the point angle of a drill is
  15. Glazing in grinding wheels can be decreased by
  16. In which of the following machine, the work remains stationary and the tool is rotated?
  17. Chemical milling operation is performed
  18. Which of the following operation is first performed?
  19. In reaming process
  20. In which of the following machine, the work rotates and the tool is stationary?
  21. For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
  22. Cold working of steel is defined as working
  23. Larger end cutting edge angle _________ tool life.
  24. In the relation VTn = C, the value of n for ceramic tools is
  25. Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
  26. In a plain milling machine, the table can be moved
  27. Broaching is applied for machining
  28. A drill considered as a cutting tool having zero rake, is known as a
  29. In gear hobbing
  30. Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance…